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Low‐Temperature Synthesis of NaNbO 3 Nanopowders and their Thin Films from a Novel Carbon‐Free Precursor
Author(s) -
Cheng Zhenxiang,
Ozawa Kiyoshi,
Osada Minoru,
Miyazaki Akimitsu,
Kimura Hideo
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00857.x
Subject(s) - raman spectroscopy , transmission electron microscopy , materials science , thin film , carbon fibers , differential thermal analysis , niobium , fourier transform infrared spectroscopy , chemical engineering , analytical chemistry (journal) , infrared spectroscopy , carbon film , diffraction , nanotechnology , chemistry , composite material , organic chemistry , optics , metallurgy , physics , engineering , composite number
We have demonstrated a synthetic procedure for nano‐sized NaNbO 3 powder and its thin films using a carbon‐free precursor prepared by the reaction of H 2 O 2 with sodium and niobium alkoxides. A combination of X‐ray powder diffraction, Raman spectra, and thermal gravity and differential thermal analysis, carbon analysis, fourier transform infrared spectra, transmission electron microscopy, and atomic force microscopy was used to characterize the resulting materials and precursor compounds. Results show that this procedure demonstrates the major advantages of low‐temperature synthesis (∼400°C) and low weight loss during transformation into NaNbO 3 because of its carbon‐free nature, which also provides the option of preparing nano‐sized particles and dense, crack‐free NaNbO 3 thin films.